Bird Poop Mimic Spider (Spiderling/Juvenile)
Scientific Name: Pasilobus sp. / Celaenia excavata (likely genus)
Order & Family: Araneae: Araneidae
Size: 2mm - 12mm (juvenile in image is likely 2-4mm)
Natural Habitat
Gardens, orchards, and woodland areas, typically found on the underside of leaves or on small twigs.
Diet & Feeding
Carnivorous; primarily feeds on small flying insects. Some species specialize in luring male moths using chemical mimics of female moth pheromones.
Behavior Patterns
Employs aggressive mimicry and camouflage. During the day, it remains motionless on a leaf, resembling bird droppings or debris to avoid predation; at night, it becomes active to hunt.
Risks & Benefits
Benefits the ecosystem by controlling insect populations. They are harmless to humans and do not possess venom that is medically significant for people.
Identified on: 3/23/2026